High precision parts
processing rules have?
For high precision spare parts, processing is very harsh, machining process with the knife, the knife, etc.
Have practical rules for size, precision and regulation, such as how much is 1 mm is negative microns, if wrong size too much will become a waste, this time is to have to again processing, time-consuming, and sometimes even prompt processing raw material was entirely, this leads to cost increase, in addition, the parts are there is no doubt that can not be used.
For high precision parts processing level is the key size of cylinder straight by how much money, for example, with strict management, are negative error within the prescribed scope is qualified parts, otherwise all the unqualified parts;
Width and actual strict management, is a negative error has requirements, such as an embedded columns (
Take very simple basic parts for example)
Straight, if the is very big, beyond the range of allowable error, will cause, not in the condition of, if in fact the small, beyond the allowable error negative low limit, can lead to put down is very loose, the problem of unstable.
This all is unqualified goods, or the cylinder length is too long or too short, more than the allowable error scope, are all substandard goods, must be repealed, or processing again, it will lead to cost increase.
The above is of high precision parts processing, that is the most critical dimension problem, must strictly enforce more engineering drawings to carry out the processing, processing out actually size there is no doubt that it is not easy to the basic theory and engineering drawing the same size, just, if only within the scope of permissible error processing size are all qualified parts, therefore, the regulation of high precision parts processing is strictly carry out the basic theory size for processing.
Second is excellent high precision parts processing machinery and equipment and testing instruments, excellent processing machinery and equipment contributed to the processing of high precision parts at that time is more concise and clear, higher precision and stronger practical effect.
Testing instrument to test out the parts do not regulation, let all the goods sent to the customer's real do.
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